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Subtitle: variation of the solid system from ideal spherical to crushed to platelet-shaped particles

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Additional titleSubtitle: variation of the solid system from ideal spherical to crushed to platelet-shaped particles
Alternative existing references for this datasetCF_030_Glimmer_007
Alternative existing references for this datasetCF_035_BCS201_002
Alternative existing references for this datasetCF_035_sph_002
Alternative existing references for this datasetCF_040_Dolomit_014
Alternative existing references for this datasetCF_040_Kalkstein_001
Other contributing persons, institutions or organisationsPeuker, Urs Alexander - Technical University Bergakademie Freiberg - Institute of Mechanical Process Engineering and Mineral Processing - Supervisor
Other contributing persons, institutions or organisationsLeißner, Thomas - Technical University Bergakademie Freiberg - Institute of Mechanical Process Engineering and Mineral Processing - Supervisor
Other contributing persons, institutions or organisationsGerman Research Foundation - Sponsor
Person(s) who is (are) responsible for the content of the research dataLöwer, Erik - Technical University Bergakademie Freiberg - Institute of Mechanical Process Engineering and Mineral Processing (ORCID: 0000-0002-6956-8054)
Description of further data processingautomatic centre shift, beam hardening correction (factor 0.05), gauss smoothing filter (kernel 0.7)
Type of data acquisitionExperiment: in-situ filtration and dewatering (downscaled pressure nutsch 5 mm diameter) according VDI 2762-2 and VDI 2762-3
Used research instruments or devicesX-ray microscope (ZEISS Xradia Versa 510)
Research objectsSubstance: potassium iodide (manufacturer: Carl Roth, > 99 %, 25 mmol/l)
Research objectsSubstance: glycerol-water solution (manufacturer: Carl Roth, > 99,5 %, 24 m.-% glycerol)
Research objectsSubstance: mica (Zinnwald deposit in the Erzgebirge region, Saxony, solid powder, 90...500 µm)
Research objectsSubstance: glass beads (manufacturer: Sigmund Lindner GmbH, solid powder, 70...110 µm)
Research objectsSubstance: limestone (manufacturer: GEOMIN Erzgebirgische Kalkwerke GmbH, solid powder, 65...120 µm)
Research objectsSubstance: quartz (manufacturer: Strobel Quarzsand GmbH, solid powder, 85...160 µm)
Research objectsSubstance: dolomite (manufacturer: Wünschendorfer Dolomitwerk GmbH, solid powder, 45...140 µm)
AbstractAppendix to Publications A to E with investigations of different particle systems (material, size and shape variation). X-ray tomography image of fully and partially dewatered filter cakes. The initial slurries contains mica, dolomite, quartz, limestone or glass particles suspended in a potassium iodide-glycerol brine. The different shaped particles were separated by cake-forming filtration followed by dewatering. All filtration and dewatering experiments took place in an in situ apparatus within the Zeiss Xradia 510 X-ray microscope. The filter cake is dewatered until the minimum degree of saturation is reached within the pore space. A scan is taken at the equilibrium state before and after dewatering. A small section in the center of the desaturated filter cakes was additionally measured at a significantly smaller field of view and higher resolution in order to be able to determine the local contact angle in addition to the saturation distribution and the size of the individual liquid bridges.
Applied methods and techniquesVDI 2762-1, VDI 2762-2 and VDI 2762-3
Additional descriptive information to understand the datasee note parameter.png in each measurement file for further measurement and reconstruction parameters
Series informationVariation of the disperse solid system in the feed from ideal spherical to crushed to platelet-shaped particles
Table of contentsCF_030_Glimmer_007 (in-situ filtration and dewatering, 30 vol.-% of mica particles, total filter cake and high-resolved section), CF_035_BCS201_002 (in-situ filtration and dewatering, 35 vol.-% of quartz particles, total filter cake and high-resolved section), CF_035_sph_002 (in-situ filtration and dewatering, 35 vol.-% of glass particles, total filter cake and high-resolved section), CF_040_Dolomit_014 (in-situ filtration and dewatering, 40 vol.-% of dolomite particles, total filter cake and high-resolved section), CF_040_Kalkstein_001 (in-situ filtration and dewatering, 40 vol.-% of limestone particles, total filter cake and high-resolved section)
Additional keywordscake filtration, cake dewatering, X-ray tomography, in-situ, VDI 2762, modelling
Languageeng
Year or period of data production2020
Publication year2021
PublisherTechnical University Bergakademie Freiberg - Institute of Mechanical Process Engineering and Mineral Processing
Content of the research dataDataset: X-ray tomography scans of filter cakes (.tiff stacks)
Holder of usage rightsTechnical University Bergakademie Freiberg - Institute of Mechanical Process Engineering and Mineral Processing
Usage rights of the dataCC-BY-4.0
SoftwareResource Production: Xradia XMReconstructor 11.1.8
Additional precise description of disciplinemechanical process engineering - solid-liquid separation - cake filtration and dewatering
Discipline(s)Engineeringde
Title of the datasetfully saturated and dewatered filter cakes at different resolutions


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This item appears in the following Collection(s)

  • Appendix to Publications A to E [1]Open Access Icon
    Appendices to the data collections of the following publications: - Publication A: Study on the influence of solids volume fraction on filter cake structures using micro tomography - Publication B: Neighborhood Relationships of Widely Distributed and Irregularly Shaped Particles in Partially Dewatered Filter Cakes - Publication C: Insight into filter cake structures using micro tomography: The dewatering equilibrium - Publication D: Network model of porous media – Review of old ideas with new methods - Publication E: Wetting behavior of porous structures: Three-dimensional determination of the contact angle after filter cake dewatering using X-ray microscopy The data collection contains tomographic images (ZEISS Xradia 510 Versa) of partially dewatered filter cakes according to VDI 2762. The images include filter cake structures from additional particle systems such as mica, limestone, quartz, dolomite and glass particles and thus complement the reference system of aluminum oxide particles (publications A to E). All particles are between 50 and 200 µm in size, and their shape varies from spherical to cubic to fibrous and plate-like.

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